Control circuit, voice switch and voice input device

The utility model provides a control circuit, a voice switch and a voice input device, a far-field voice switch module is connected with a key switch module in parallel and then is connected with a control module, the far-field voice switch module is used for outputting far-field voice switch information, and the key switch module is used for outputting a second voltage signal; therefore, the far-field voice switch module and the key switch module are connected in parallel and then are connected with the control module, so that the control module can receive switching signals of the far-field voice switch module and the key switch module only through one IO port. The control module can control the on-off of the far-field voice and the function corresponding to the key switch by analyzing and judging the obtained switching signal. 本实用新型提出了一种控制电路、语言开关及语音输入装置，远场语音开关模块与按键开关模块并联后再与控制模块连接，由于远场语音开关模块用于输出远场语音开关信息、按键开关模块用于输出第二电压信号，因此远场语音开关模块与按键开关模块并联后再与控制模块连接，既可以实现控制模块仅通过一个IO口就能接收远场语音开关模块与按键开关模块的开关信号的效果，控制模块通过对获取的开关信号